Q-W6: registration table (OCP) in main.cpp; bank verbs -> shell/bank_ops(Session&); persist.h + wav_trim + namespaces.h shims deleted; 61/61

capture.h realtime seam split to capture_realtime_shell.h; GetProjExtState grow-loop rehomed to core/wire/ext_state_read; stale persist.cpp/bank_panel.cpp comment refs fixed; CLAUDE.md persist/bank_book/actions bullets updated. Command-id suffixes, display phrases, and undo labels byte-identical.

src/shell/instrument/reaper_bridge.h

@@ -16,7 +16,6 @@
 // reaper_vst3_interfaces.h + reaper_plugin_functions.h at the spike.
 
 #pragma once
-#include "core/namespaces.h"
 
 #include <optional>
 #include <string>
@@ -87,7 +86,8 @@ private:
                                         int valOut_sz);
     // EnumProjects(-1, projfnOut, sz) -> active project + its .rpp path (SDK line
     // ~1264). The instrument uses idx=-1 (current tab) so it follows the active project,
-    // and reads the .rpp path from the out-buffer exactly as persist.cpp does.
+    // and reads the .rpp path from the out-buffer exactly as the persist shell
+    // (ext_state_io.cpp) does.
     using EnumProjectsFn = void* (*)(int idx, char* projfnOut, int projfnOut_sz);
     // SetProjExtState(proj, extname, key, value) -> int (SDK line ~6290). Used ONLY by
     // writeUsageExtState (prefix-guarded) — see the read-only-bank note there.